Finding the Fourth Proportional to 2,407.28, 3,321.36 and 1,522.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.28 : 3,321.36 = 1,522.76 : x
2. Step 2: Convert to fraction form
   2,407.28/3,321.36 = 1,522.76/x
3. Step 3: Cross multiply
   2,407.28x = 3,321.36 × 1,522.76
4. Step 4: Simplify right side
   2,407.28x = 5,057,634.15
5. Step 5: Solve for x
   x = 5,057,634.15/2,407.28
6. Step 6: Final answer
   x = 2,100.97